Depressor septi nasalis muscle

Last revised by Daniel J Bell on 22 Sep 2021

The depressor septi nasalis muscles (DSN), also known as the depressor septi nasi muscles, are paired muscles of the nose, a subset of the facial muscles, which depress the nose.


Gross anatomy

  • maxilla superior to the central incisor (incisive fossa)
  • anterior nasal septum, passing to the medial crural footplates, terminating in the membranous septum
Arterial supply
Venous drainage
  • depresses the tip of the nose 1

ADVERTISEMENT: Supporters see fewer/no ads

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.